02 September 2016.
Oregon, United States
Locality: south side of Hwy 20 at Squaw Creek, southwest of Harper, Malheur county
Coordinates: 43.7877, -117.6916
(Map it)
Elevation: 800m.
Environment description: Dry arroyo, with rocky, sandy soil
Comment: Most plants growing in gravels of the stream bed; also abundant in disturbed roadside areas.
Collector(s):